package 草稿包;

import java.util.Scanner;

public class test6 {
    public static void main(String[] args) {
        Scanner in=new Scanner(System.in);
        int a,b;
        a=in.nextInt();
        b=in.nextInt();
        int c=a*10+b;
        int d=1*10+9;
        System.out.println(c/d);
    }
}
